河南工业大学化学化工学院
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刘勤, 何丽君, 杨君, 等. 离子液体基磁性固相萃取技术的研究进展[J]. 分析测试学报, 2015,34(7):860-866.
Research Progress on Ionic Liquid-based Magnetic Solid-phase Extraction[J]. 2015,34(7):860-866.
磁性固相萃取(Magnetic solid phase extraction,MSPE)是一种采用磁性材料作为吸附剂的新型样品前处理技术,发展新型的磁性材料作为吸附剂是MSPE领域的研究热点。用离子液体(Ionic liquid,IL)修饰磁性材料作为吸附剂既具有MSPE操作简单、萃取快速、基质干扰小的优点,又兼具IL结构的可设计性和易功能化的优点,在样品前处理领域引起了广泛关注。该文综述了IL修饰磁性吸附剂的制备方法(物理涂敷、化学键合和包埋法),IL-MSPE的萃取方式(传统的MSPE,混合半胶束-MSPE和分散液液微萃取-MSPE),以及IL-MSPE在有机污染物、金属离子和生物活性物质萃取分离中的应用,并对该技术的发展趋势进行了展望。
Magnetic solid-phase extraction(MSPE)is a novel sample preparation technique using magnetic materials as sorbents,which can be quickly separated from sample solution under external magnetic field.The development of new magnetic sorbents has become a subject of great interest in the MSPE field.MSPE using ionic liquid(IL)modified magnetic particles as sorbent has attracted more and more attention in the extraction and separation of trace or ultra trace organic pollutants and inorganic ions in food,environmental and biological samples.The technique possesses some advantages of MSPE such as simple operation,quick extraction and low matrix interference,as well as unique characteristics of IL including tailored structure and easy chemical functionalization. Some preparation methods of IL modified magnetic materials are provided,including physical coating method,chemical bonding method and embedding method,and some extraction modes of IL-MSPE such as traditional MSPE,mixed hemimicelles based MSPE and dispersive liquid-liquid microextraction based MSPE. The applications of IL-MSPE as a sample preparation in the extraction and separation of organic pollutants,metal ions and biological molecules using chromatography and spectroscopy techniques in the latest 5 years are reviewed,and the future trends of IL-MSPE technique are also discussed.
离子液体磁性固相萃取磁性吸附剂样品前处理综述
ionic liquidmagnetic solid-phase extractionmagnetic sorbentsample preparationreview
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